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Finding the Fourth Proportional to 1,544.69, 2,316.50 and 666.96

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Solution

The fourth proportional to 1,544.69, 2,316.50 and 666.96 is: 1,000.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.69 : 2,316.50 = 666.96 : x
  2. Step 2: Convert to fraction form
    1,544.69/2,316.50 = 666.96/x
  3. Step 3: Cross multiply
    1,544.69x = 2,316.50 × 666.96
  4. Step 4: Simplify right side
    1,544.69x = 1,544,997.92
  5. Step 5: Solve for x
    x = 1,544,997.92/1,544.69
  6. Step 6: Final answer
    x = 1,000.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.